Door-stop.



F. D. MELVILL.

DOOR STOP.

APPLICATION rum) an 27, mos.

' Patented Feb. 2. 1909.

FREDRIOK DANIEL MELVILL, OF KLERKSDORP, TRANSVAAL.

DOOR-STOP.

Specification of Letters Patent.

Patented Feb. 2, 1909.

Application filed May 27, 1908. Serial No. 435,237.

To all whom it may concern:

Be it known that I, FREDRICK DANIEL MELVILL, bookkeeper, a subject of the King of Great Britain, residing at Church street, Klerksdorp, Colony of the Transvaal, have invented new and useful Improvements in Door-Stops, of which the following is a specification.

This invention relates to stop devices which are carried by a door and are designed to engage the fioor for the purpose of retaining the door in position when open; such devices being frequently employed in conjunction with spring door closing means.

The purpose of the resent invention is to provide such a stop w ich is cheap and simple to manufacture and fit up, and which is o erated manually and preferably by means 0 the usual door handles or equivalent devices so as to be 0 erate'd with-equal facility from either side 0 the door; being applicable to either right or left hand doors and readily adaptable to doors of various dimensions. The sto roper is such as to operate automatical y by its own weight and is usually arranged to engage in one direction only.

The invention is illustrated in the accompanying drawings, Figure I being a view (to a smaller scale t an the rest of the figures) of the device fitted up for use, Fi II an elevation of the crank and art of t e connecting rod, Fig. III a vertical section and Fig. IV a plan of the sto proper, and Fig. V showing a ocking attac ment; all these parts being more particularly described hereafter.

Numeral 1 indicates a sheet metal frame or bracket adapted to be secured to the door 2 on the inner side, that is the side towards which the door opens, and near to the lower edge thereof. Plvoted thereon by a pin 3 is the cam or arm 4 having a tread 5 of rubber or other suitable material for engaging the floor; the point of engagement being between the pivot 3 and the door so that in o ening the door the cam trails freely over t e floor, but operates as a brake upon the movement being reversed. The cam is constructed of a single piece of sheet metal bent to form the two side cheeks 6 and connected at one end by the integral piece 7 and clasped at the other end by a pin 8. An arcuate strip 9 is turned at one end around said pin 8 and is hooked at the other end under the piece 7; said strip 9 serving as a backing for the tread 5, which is clamped between the cheeks 6 and further secured if desirable by one or more pins 10. rests upon the floor, and it is raised there from by movement of the door handles or equivalent devices. To this end there is provided a crank 11, which, as shown, is simply a plate pierced with a square central hole 12 so that it may be sli ped onto the spindle carrying the handle mobs to rotate therewith, being retained in position by the hanle 13.

The connecting rod for coupling the crank 11 to the cam 4 comprises a metal strip 14 permanently pivoted to the crank and formmg one terminal, a second metallic terminal 15 pivoted to the cam, said terminals being ierced with screw holes 16, and a wooden intermediate part 17 which may be readily cut to the necessary length and to which the terminals are screwed. The connecting rod is held in place by means of guides 18.

In some cases a tubular or telescopic connecting rodma be employed, having means for clamping t 1e two parts to form a rigid rod of the required length.

For holding the sto out of action there may be pivoted to t e connecting rod a toothed cam 19 capable of being turned to en age the door and thereby frictionally ho ding the connecting rod in its elevated position.

In a modified form of the invention more suitable for applying to doors before being hung, the stop and crank are fitted within recesses formed in the door and the connecting rod is carried down a passage formed in the door stile.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In combination with a door, a gravity acting stop, means for operating the stop, a connecting rod joining said means to the stop and a locking device associated with the connecting rod and adapted to engage the door frictlonally.

2. In combination with a door stop and ac tuating means therefor, a connecting rod comprlsing terminal pieces permanently joined respectively to said stop and to said The stop normally 4 actuating means, and a wooden intermeber of yielding material disposed against said 10 diate portion to which the terminal pieces backing strip and secured to said cam memare adapted to be secured. her.

3. In combination with a door, of a stop In testimony whereof I afiix my signature actuating device therefor, a stop operatively in the presence of two witnesses.

connected with said device and comprising FREDRICK DANIEL MELVILL. a ivotall mounted u-sha ged cam member, Witnesses: a at bac 'ng strip remova 1y secured with- WM. HILLMAN VINCENT,

in said member, and a segmental tread mem- J. WARREN VENNING. 

